Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares	Sep. 24, 2016	Dec. 26, 2015
Stockholders' Equity:
Preferred stock, par value (In dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized (In shares)	10,000,000	10,000,000
Preferred stock, shares issued (In shares)	0	0
Preferred stock, shares outstanding (In shares)	0	0
Common stock, par value (In dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (In shares)	250,000,000	250,000,000
Common stock, shares issued (In shares)	70,724,569	58,088,969
Common stock, shares outstanding (In shares)	70,724,569	58,088,969